并励直流电动机的基本控制线路.ppt

１.能耗制动控制线路 能耗制动是指保持直流电动机的励磁电流不变，将电枢绕组的电源切除后，立即使其与制动电阻连接成闭合回路，电枢凭惯性处于发电运行状态，将动能转化为电能并消耗在电枢回路中，同时获得制动力矩，迫使电动机迅速停转。 并励直流电动机能耗制动原理 并励直流电动机能耗制动原理 并励直流电动机能耗制动原理 并励直流电动机能耗制动原理 并励直流电动机能耗制动原理 并励直流电动机能耗制动原理 并励直流电动机能耗制动原理 并励直流电动机能耗制动原理 并励直流电动机能耗制动原理 L+ KV QF KM2 KA KM1 KM2 KM5 KM3 KT1 SB2 KT2 KT1 I KM3 KM1 KM4 KT2 L 电路组成分析 M KA SB3 SB1 KM1 KM4 KM2 KM5 KM3 KM2 KM2 KM1 KV KM1 KM1 KM2 KM4 KM5 KM1 KM2 KM1 KM2 KM6 KM7 KM3 KM6 KM7 RB R1 R2 L+ KV QF KM2 KA KM1 KM2 KM5 KM3 KT1 SB2 KT2 KT1 I KM3 KM1 KM4 KT2 L 合上QF M KA SB3 SB1 KM1 KM4 KM2 KM5 KM3 KM2 KM2 KM1 KV KM1 KM1 KM2 KM1 KM2 KM1 KM2 KM6 KM7 KM3 KM6 KM7 RB R1 R2 KM4 KM5 L+ KV QF KM2 KA KM1 KM2 KM5 KM3 KT1 SB2 KT2 KT1 I KM3 KM1 KM4 KT2 L 按下SB1 KM1线圈得电 M KA SB3 SB1 KM1 KM4 KM2 KM5 KM3 KM2 KM2 KM1 KV KM1 KM1 KM2 KM1 KM2 KM1 KM2 KM6 KM7 KM3 KM6 KM7 RB R1 R2 KM4 KM5 L+ KV QF KM2 KA KM1 KM2 KM5 KM3 KT1 SB2 KT2 KT1 I KM3 KM1 KM4 KT2 L KM1触头动作 电动机串联全部电阻启动 M KA SB3 SB1 KM1 KM4 KM2 KM5 KM3 KM2 KM2 KM1 KV KM1 KM1 KM2 KM1 KM2 KM1 KM2 KM6 KM7 KM3 KM6 KM7 RB R1 R2 KM4 KM5 L+ KV QF KM2 KA KM1 KM2 KM5 KM3 KT1 SB2 KT2 KT1 I KM3 KM1 KM4 KT2 L M KA SB3 SB1 KM1 KM4 KM2 KM5 KM3 KM2 KM2 KM1 KV KM1 KM1 KM2 KM1 KM2 KM1 KM2 KM6 KM7 KM3 KM6 KM7 RB R1 R2 KT1经过整定时间 KT1动断触头延时闭合, KM6线圈得电 KM6触头闭合 电动机串联R2继续启动 KM4 KM5 L+ KV QF KM2 KA KM1 KM2 KM5 KM3 KT1 SB2 KT2 KT1 I KM3 KM1 KM4 KT2 L M KA SB3 SB1 KM1 KM4 KM2 KM5 KM3 KM2 KM2 KM1 KV KM1 KM1 KM2 KM1 KM2 KM1 KM2 KM6 KM7 KM3 KM6 KM7 RB R1 R2 KV线圈升高到一定值 KV触头闭合 电动机串联R2继续启动 KM4 KM5 L+ KV QF KM2 KA KM1 KM2 KM5 KM3 KT1 SB2 KT2 KT1 I KM3 KM1 KM4 KT2 L M KA SB3 SB1 KM1 KM4 KM2 KM5 KM3 KM2 KM2 KM1 KV KM1 KM1 KM2 KM1 KM2 KM1 KM2 KM6 KM7 KM3 KM6 KM7 RB R1 R2 KT2经过整定时间 KT2动断触头延时闭合, KM7线圈得电 KM7触头闭合 切除全部电阻 电动机继续启动 全速运行 KM4 KM5 L+ KV QF KM2 KA KM1 KM2 KM5 KM3 KT1 SB2 KT2 KT1 I KM3 KM1 KM4 KT2 L M KA SB3 SB1 KM1 KM4 KM2 KM5 KM3 KM2 KM2 KM1 KV KM1 KM1 KM2 KM1 KM2 KM1 KM2 KM6 KM7 KM3 KM6 KM7 RB R1 R2 按下SB3 KM1线圈失电 KM4 KM5 L+ KV QF KM2 KA KM1 KM2 KM5 KM3 KT1 SB2 KT2 KT1 I KM3 KM1 KM4 KT2 L M